Bicyclo [2.2.1] acid GPR120 modulators
a technology of bicyclo[2.2.1] and gpr120, which is applied in the field of bicyclo2 . 2 . 1 compounds, can solve the problems of micro- and macrovascular complications and morbidity, and achieve the effects of improving the gpr120 activity and gpr120 activity
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example 1
[0350]To a 0° C. suspension of methyl 4-(4-hydroxybicyclo[2.2.1]heptan-1-yl) butanoate (10 mg, 0.047 mmol), 2,6-di-tert-butylpyridine (0.016 mL, 0.071 mmol), and AgOTf (13 mg, 0.052 mmol) in CH2Cl2 (0.5 mL) was added 5-(bromomethyl)-1-(4-chlorophenyl)-3-methyl-1H-pyrazole (16.14 mg, 0.057 mmol); a yellow precipitate formed within a few minutes. The reaction was slowly warmed up to rt and stirred at RT overnight. The reaction was diluted with CH2Cl2 and filtered through a plug of CELITE®. The filtrate was concentrated in vacuo. The residue was taken up in THF (1 mL) and water (0.5 mL), and LiOH.H2O (10 mg, 0.24 mmol) was added. The reaction was stirred at rt overnight and diluted with EtOAc (30 mL) and H2O (20 mL). The aqueous layer was washed with EtOAc (2×10 mL). The organic layer was extracted with H2O (3×20 mL). The combined aqueous extracts were adjusted with 1 N aq. HCl to pH ˜3 and extracted with EtOAc (3×50 mL). The combined organic extracts were washed with brine (10 mL), dr...
example 68
[0364]The title compound was prepared using a procedure analogous to Example 1 except that methyl 4-(4-hydroxybicyclo[2.2.1]heptan-1-yl)butanoate was replaced with ethyl 4-(4-hydroxybicyclo[2.2.1]heptan-1-yl)-2-methylbutanoate. LCMS, [M−H]+=393.1. 1H NMR (500 MHz, CDCl3) δ 7.55 (dd, J=7.4, 1.4 Hz, 1H), 7.34-7.29 (m, 2H), 7.25-7.20 (m, 1H), 7.17-7.12 (m, 1H), 7.10-7.05 (m, 1H), 6.97-6.93 (m, 2H), 6.88 (dd, J=8.1, 1.0 Hz, 1H), 4.58 (s, 2H), 1.86-1.77 (m, 2H), 1.69-1.49 (m, 7H), 1.47-1.39 (m, 6H), 1.19 (d, J=6.9 Hz, 3H). HPLC-1: RT=13.2 min, purity=92.8%; HPLC-2: RT=11.1 min, purity=100%.
example 69
3-Methyl-4-(4-(3-phenoxybenzyloxy)bicyclo[2.2.1]heptan-1-yl)butanoic acid
[0365]
[0366]The title compound was synthesized similarly as for Example 68 through the following sequence: (1) reaction of 4-methoxybicyclo[2.2.1]heptane-1-carbaldehyde with the anion of (methoxymethyl)triphenylphosphonium chloride to afford the corresponding ester; (2) TMSI treatment to give the alcohol as in 68E; (3) AgOTf-mediated alkylation of the alcohol as in Example 1H; (4) LiOH hydrolysis of the ethyl ester as in Example 1H; (5) one-carbon elongation of the resulting acid using the Arndt-Eistert reaction sequence provided the title compound. LCMS, [M−H]+=393.1. 1H NMR (500 MHz, CDCl3) δ 7.57 (dd, J=7.55, 1.51 Hz, 1H), 7.36-7.31 (m, 2H), 7.24 (td, J=7.84, 1.72 Hz, 1H), 7.16 (td, J=7.48, 1.09 Hz, 1H), 7.10-7.06 (m, 1H), 6.99-6.95 (m, 2H), 6.90 (dd, J=8.1, 1.0 Hz, 1H), 4.59 (s, 2H), 2.36 (dd, J=15.2, 5.97 Hz, 1H), 2.18 (dd, J=15.2, 8.0 Hz, 1H), 2.1-2.0 (m, 1H), 1.87-1.78 (m, 2H), 1.69-1.56 (m, 4H), 1.54-1....
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